Luisia, abbreviated as Lsa in horticultural trade, is a genus of epiphytical orchids in family Orchidaceae. It contains about 40 species found in tropical Asia, Indian subcontinent, China, Japan, Malaysia, Philippines, Australia, Micronesia and Melanesia. The genus was named by Charles Gaudichaud-Beaupré in 1829 for Luis de Torres, native Vice Governor of Guam. 16x Media related to Luisia at Wikimedia Commons